ci.shellcode.yml

name: ci·shellcode

on:
  pull_request:
    paths:
      - src/modes/shellcode.*
      - src/prefab/construct-env.*
      - .github/workflows/ci.shellcode.yml

  workflow_call:

concurrency:
  group: ${{ github.ref }}/shellcode
  cancel-in-progress: true

jobs:
  compile:
    runs-on: ubuntu-latest
    steps:
      - uses: denoland/setup-deno@v1
        with:
          deno-version: 1.45.5
      - uses: actions/checkout@v4
      - run: deno task compile
      - uses: actions/upload-artifact@v4
        with:
          name: pkgx
          path: pkgx

  #NOTE bash/zsh/POSIX jobs are duplicated because `shell` cannot be set by a matrix :-/
  bash:
    needs: compile
    runs-on: ubuntu-latest
    container: debian:buster-slim
    defaults:
      run:
        shell: bash -eo pipefail {0}
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx

      - name: prep
        run: |
            apt-get update && apt-get --yes install bash libatomic1
            chmod u+x /usr/local/bin/pkgx

      - run: |
          test -n "$BASH_VERSION"
          echo $PATH

      - name: ensure test specimens are not installed on the runners
        run: |
          if which duf node; then
            exit 1
          fi

      - name: env +duf doesn’t add duf until the shellcode is loaded
        run: |
          if env +duf; then
            exit 1
          fi
          if which duf node; then
            exit 1
          fi

      - name: test `env +foo` shellcode
        run: |
          eval "$(pkgx --shellcode)"

          env +duf
          duf --version
          env -duf

          # check deactivate has worked
          if which duf; then
            exit 3
          fi

      - name: test `dev` shellcode
        run: |
          eval "$(pkgx --shellcode)"

          echo '{}' > package.json
          dev
          node --version

          cd ..
          if which node; then
            exit 4
          fi

          cd -
          node --version

      #TODO need to be in the pantry first
      # - name: pkgx@latest
      #   run: |
      #     eval "$(pkgx --shellcode)"
      #     pkgx@latest --version

      - name: ~/.local/bin in PATH
        run: |
          mkdir -p ~/.local/bin
          echo '#!/bin/sh' > ~/.local/bin/foo
          echo 'echo hi' >> ~/.local/bin/foo
          chmod u+x ~/.local/bin/foo

          if foo; then
            exit 1
          fi

          eval "$(pkgx --shellcode)"
          test $(foo) = hi

      - name: POSIXLY_CORRECT
        run: |
          eval "$(pkgx --shellcode)"
          env +duf
          duf --version
        shell: bash -eo posix {0}

  zsh:
    needs: compile
    runs-on: ubuntu-latest
    container: debian:buster-slim
    defaults:
      run:
        shell: zsh -eo pipefail {0}
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx

      - name: prep
        run: |
          apt-get update && apt-get --yes install zsh libatomic1
          chmod u+x /usr/local/bin/pkgx
        shell: sh  # ∵ cannot be zsh until zsh is installed

      # NOTE matrix does not work for the shell key :-/
      - run: |
          test -n "$ZSH_VERSION"
          echo $PATH

      - run: |
          if which duf node optipng; then
            exit 1
          fi
        name: ensure test specimens are not installed on the runners

      - name: env +duf doesn’t add duf until the shellcode is loaded
        run: |
          if env +duf; then
            exit 1
          fi
          if which duf node; then
            exit 1
          fi

      - name: test `env +foo` shellcode
        run: |
          eval "$(pkgx --shellcode)"

          env +duf
          duf --version
          env +optipng
          optipng --version
          env -duf -optipng

          # check deactivate has worked
          if which duf optipng >/dev/null; then
            exit 3
          fi

      - name: test `pkgx activate` shellcode
        run: |
          eval "$(pkgx --shellcode)"

          echo '{}' > package.json
          dev
          node --version

          cd ..
          if which node >/dev/null; then
            exit 4
          fi

          cd -
          node --version

          # subfolders are still considered “in-env”
          mkdir foo
          cd foo
          node --version

          dev off

          if which node >/dev/null; then
            exit 5
          fi

      #TODO need to be in the pantry first
      # - name: pkgx@latest
      #   run: |
      #     eval "$(pkgx --shellcode)"
      #     pkgx@latest --version

      - name: ~/.local/bin in PATH
        run: |
          mkdir -p ~/.local/bin
          echo '#!/bin/sh' > ~/.local/bin/foo
          echo 'echo hi' >> ~/.local/bin/foo
          chmod u+x ~/.local/bin/foo

          if foo; then
            exit 1
          fi

          eval "$(pkgx --shellcode)"
          test $(foo) = hi

      - name: emulate -L sh
        run: |
          emulate -L sh
          eval "$(pkgx --shellcode)"
          env +duf
          duf --version

  POSIX:
    needs: compile
    runs-on: ubuntu-latest
    container: debian:buster-slim
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx

      - name: prep
        run: |
          apt-get update && apt-get --yes install libatomic1
          chmod u+x /usr/local/bin/pkgx

      # NOTE matrix does not work for the shell key :-/
      - name: test `use` shellcode
        run: |
          # ensure test specimens are not installed on the runners
          if which duf node; then
            exit 1
          fi

          # env +foo should not work until the shellcode is evaluated
          if env +duf; then
            exit 1
          fi
          if which duf node; then
            exit 1
          fi

          eval "$(pkgx --shellcode)"

          env +duf
          duf --version
          env +optipng
          optipng --version
          env -duf -optipng

          # check env is now empty again
          if which duf >/dev/null; then
            exit 3
          fi

      # verifies our assumption that we are running in “POSIX mode”
      - name: pkgx@latest fails
        run: |
          eval "$(pkgx --shellcode)"

          if pkgx@latest --version; then
            exit 1
          fi

      - name: test `dev` shellcode
        run: |
          eval "$(pkgx --shellcode)"

          echo '{}' > package.json
          dev
          node --version
      # ^^ POSIX mode cannot persist or deactivate activations

  # verifies pkgx install installs the version being used
  test-install:
    needs: compile
    runs-on: ubuntu-latest
    container: debian:buster-slim
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx

      - name: prep
        run: |
          apt-get update && apt-get --yes install bash libatomic1
          chmod u+x /usr/local/bin/pkgx

      - run: |
          eval "$(pkgx --shellcode)"

          env +node^16
          pkgx install

          #TODO
          #if pkgx -node; then
          #  exit 3
          #fi

          node --version | grep v16
        shell: bash

  test-plus-pkg-syntax:
    runs-on: ubuntu-latest
    needs: compile
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx
      - name: prep
        run: |
          chmod u+x /usr/local/bin/pkgx

      - run: pkgx +ack node -e 'console.log()'

  test-shebangs:
    runs-on: ubuntu-latest
    needs: compile
    container: debian:buster-slim
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx

      - name: prep
        run: |
          apt-get update && apt-get --yes install bash libatomic1
          chmod u+x /usr/local/bin/pkgx

      - run: |
          echo '#!/usr/bin/env -S pkgx +ack node' > foo
          echo 'console.log("sh.pkgx")' >> foo
          chmod u+x foo

      - run: test $(./foo) = 'sh.pkgx'
      - run: if pkgx ./foo; then exit 1; fi
      - run: if pkgx foo; then exit 1; fi

      - run: |
          echo '#!/usr/bin/env node' > foo
          echo 'console.log("sh.pkgx")' >> foo

      - run: test $(pkgx ./foo) = 'sh.pkgx'
      - run: test $(pkgx foo) = 'sh.pkgx'
      - run: if ./foo; then exit 1; fi

  fork-bomb-protector-check:
    runs-on: ubuntu-latest
    needs: compile
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx
      # create a fork bomb, but since it’s via pkgx we prevent it
      - run: |
          echo '#!/bin/sh' > foo
          echo 'pkgx -- /bin/sh "$0"' >> foo
          chmod u+x foo
      - run: |
          if ./foo; then
            exit 1
          fi

  no-shell-output-if-no-tty:
    needs: compile
    runs-on: ubuntu-latest
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx

      - name: prep
        run: chmod u+x /usr/local/bin/pkgx

      #TODO ideally we'd test something that uses another tool in pkgx and
      # is poorly written so it reads both stdout and stderr eg `lazygit`
      # but CI doesn't have ttys and I couldn't figure out another way
      # ref https://github.com/actions/runner/issues/241
      #NOTE CI has no ttys so the opposite test is v. hard to achieve
      - run: |
          pkgx echo 2> >(tee temp_file) >/dev/null
          if [[ -s temp_file ]]; then
            echo
            echo 'pkgx output logging info when no tty present' >&2
            exit 1
          fi

  cannot-multi-dev:
    needs: compile
    runs-on: ubuntu-latest
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx
      - name: prep
        run: chmod u+x /usr/local/bin/pkgx

      - run: echo '{}' > package.json

      - run: |
          eval "$(pkgx --shellcode)"

          dev

          if dev; then
            echo 'dev did not fail when already activated' >&2
            exit 1
          fi

  x-already-defined-works:
    needs: compile
    runs-on: ubuntu-latest
    defaults:
      run:
        shell: zsh -eo pipefail {0}
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: /usr/local/bin
          name: pkgx
      - name: prep
        run: |
          sudo apt-get update && sudo apt-get --yes install zsh libatomic1
          chmod u+x /usr/local/bin/pkgx
        shell: sh
      - run: |
          alias x="echo hi"
          eval "$(pkgx --shellcode)"
          test "$(x)" = hi